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#ifndef __XMPFiles_IO_hpp__
#define __XMPFiles_IO_hpp__ 1
// =================================================================================================
// Copyright Adobe
// Copyright 2010 Adobe
// All Rights Reserved
//
// NOTICE: Adobe permits you to use, modify, and distribute this file in accordance with the terms
// of the Adobe license agreement accompanying it.
// =================================================================================================
#include "public/include/XMP_Environment.h" // ! XMP_Environment.h must be the first included header.
#include "public/include/XMP_Const.h"
#include "public/include/XMP_IO.hpp"
#include "source/Host_IO.hpp"
#include "source/XMP_ProgressTracker.hpp"
#include "XMP_LibUtils.hpp"
#include <string>
// =================================================================================================
class XMPFiles_IO : public XMP_IO {
// Implementation class for I/O inside XMPFiles, uses host O/S file services. All of the common
// functions behave as described for XMP_IO. Use openReadOnly and openReadWrite constants from
// Host_IO for the readOnly parameter to the constructors.
public:
static XMPFiles_IO * New_XMPFiles_IO(
const char * filePath,
bool readOnly,
GenericErrorCallback * _errorCallback = 0,
XMP_ProgressTracker * _progressTracker = 0);
XMPFiles_IO(Host_IO::FileRef hostFile,
const char * filePath,
bool readOnly,
GenericErrorCallback* _errorCallback = 0,
XMP_ProgressTracker * _progressTracker = 0);
virtual ~XMPFiles_IO();
XMP_Uns32 Read(void * buffer, XMP_Uns32 count, bool readAll = false);
void Write(const void * buffer, XMP_Uns32 count);
XMP_Int64 Seek(XMP_Int64 offset, SeekMode mode);
XMP_Int64 Length();
void Truncate(XMP_Int64 length);
XMP_IO * DeriveTemp();
void AbsorbTemp();
void DeleteTemp();
void SetProgressTracker(XMP_ProgressTracker * _progressTracker) {
this->progressTracker = _progressTracker;
};
void SetErrorCallback(GenericErrorCallback & _errorCallback) {
this->errorCallback = &_errorCallback;
};
void Close(); // Not part of XMP_IO, added here to let errors propagate.
private:
bool readOnly;
std::string filePath;
Host_IO::FileRef fileRef;
XMP_Int64 currOffset;
XMP_Int64 currLength;
bool isTemp;
XMPFiles_IO * derivedTemp;
XMP_ProgressTracker * progressTracker; // ! Owned by the XMPFiles object!
GenericErrorCallback * errorCallback; // ! Owned by the XMPFiles object!
// Hidden on purpose.
XMPFiles_IO()
: fileRef(Host_IO::noFileRef)
, isTemp(false)
, derivedTemp(0)
, progressTracker(0) {};
// The copy constructor and assignment operators are private to prevent client use. Allowing
// them would require shared I/O state between XMPFiles_IO objects.
XMPFiles_IO(const XMPFiles_IO & original);
void operator = (const XMP_IO & in);
void operator = (const XMPFiles_IO & in);
};
// =================================================================================================
#endif // __XMPFiles_IO_hpp__
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